Milk-strainer



N. P. PETERSEN.

MILK STRAINER.

APPLICATION FILED IULY3, 1919.

Patented Mar. 2, 1920.

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M M i W @How/mw UNITED sTATEs PATENT oEEioE.

mats-:PETER rE'rEEsEN, or WEsT LAFAYETTE, INDIANA.v

p MILK-STEAINEE.

To all whom t may concern: Be it known thatl I, NiELs P. PETERSENresiding at West Lafayette, in the county of Tippecanoe and State ofIndianawhave invented certain new and useful Improvements inMilk-Strain'ers, of which the following is a specification.

This invention relates to liquid strainers, and more particularly tomilk strainers.

The objectof the invention is to provide a' sanitary milk strainer whichwill aerate the milk in its passage therethrough and which may be easilyand effectively cleaned. yAnother object is to so construct such astrainer that all the parts may be quickly separated for cleaning andreadily assembled when desired for use, and which has no seams to catchdirt.

With 'the foregoing and other objects in View, which Will appear as thedescription proceeds, the invention resides 'in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

ln the accompanying drawings Figure` l represents a side elevation of astrainer constructed in accordance with this invention, A

Fig. 2 is a central vertical section thereof, Fig. 3 is a top plan view,and

Fig. 4*'s a horizontal section taken onthe line 4 4 of Fig. 2.-

lln the embodiment illustrated, a hollow, truncated, cone-shaped outercasing 1 is shown, the smaller end of which merges into a cylindricalreduced extension 2 having a i shoulder 3 formed at the junction thereof'with said casing 1.

This casing l is provided with two series of vertically spacedperforations 4 and 5, any desired number. of perforations being arrangedin each series, and an imperferate portion 1E forming a lband betweenthem. f

An inner casing 6, also truncated coneshaped in form is designed to bemounted in the casing 1 and is of less diameter than the outer casing toform an air space between the two when assembled, the outer end of thisinner casing 6 being offset outwardly as shown at 7 to adapt it to fitsnugly withy Specification of Letters Patent.

. Patented Mar. 2, 1920.

Application inea Jury e, 1919. serial No. 308,438.'

in the outer end of the casing 1 and the shoulder 8 is provided at theinner end of said oset portion to form a support for the cover 10presently to be described. This casing 6 has a series of apertures 9arranged around its periphery and positioned ,y

The cover 10 has an annular flange 11 def signed to fit snugly againstthe inner face of the offset portion 7 of the inner casing 6, and saidcover rests on the shoulder 8 of said casing whenin operative positionas is shown clearly in Fig. 2. This cover 10 has an annular depression12 adjacent the {iange 11 which-is pierced with a plurality ofapertures12a to permit the milk to pass through and to screen out largerparticles of solid matter which 4might be contained in the milk. l

A hollow pyramidal, finely perforated member 13 is designed to bemounted in the bottom of the strainer and has an annui lar outwardlyextending fiange 14 which passes under the lower end of the'casing 6 andis .clampingly held b said casing to support the strainer mem er 13 inoperative position.

Betweenthe iiange 14 of the strainer 13 and the shoulder 3 of casing 1are disposed two perforated metal plates 15 and 16 having a foraminousfabric disk 17 arranged Y between them and which are designed to strainout the small particles of dirt and the like.

From the above description it will be obvious that when the partsv areassembled as shown in Fig. 2, the milk poured onto the top 10 will passthrough the openings 12a therein down onto the pyramidal strainer,V

13 and be distributed thereby onto the straining disks disposed belowit" and will pass out through the extension 2 into the can or otherreceptacle designed to receive it.' This passage of the milk through thestrainer will operate to suck in air through the apertures 4, 5 and 9and thoroughly cool and aerate the passing milk.

When, desired to clean the strainer, all that is necessary -is to liftout the top 10, remove the inner` casing 6 and then Athe strainer 13 maybe lifted out andthe disks f 15 and 16 removed and separatedv from eachother to provide for the removal of the -1 straining fabric 17 which ispreferably made of-cotton or the like and may be renewed when foundnecessary.-

From the foregoing description, taken in connection with theaccompanying draw-- ings, the advanta es-of the construction and of themethod o operation will be readily apparent to those skilled in the artto which the invention appertains and while Ihave described theprinciple of operation of the invention together with the device which Inow consider to beV the bestl embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative and that suchchanges may be made as are within the scope of the claimediinvention.

Having Vthus fully described my invention, what I claim as new anddesire to seranged tov be positioned between the series of the othermember when in assembled relation.

A strainer of the class described rcomprlsing inner and outer radiallyspaced concentric members arranged one within the other with a strainingelement closing the bottom thereof, said members having perforationstherein arranged outvofregister with each other.

4. A strainer 'of the class described comprising inner and outerradially spaced concentric members arranged one within the other with astrainingelement closing the bottom thereof, said members havingperforations therein arranged out of register with each other, and acover, for said inner member having -perforations therein.

5. A strainer f the class described comprising inner 'and outer radiallyspaced concentric members arran ed one within the other and perforated,t e upper end of the inner member being offset outwardly and adaptedtocontact with the inner face of the outer member, a closure supported bysaid offset portion of the inner member and perforated to permit thepassage of liquid therethrough, and a straining element mounted in thelower end between said members.

6. 'A strainer of the class described comprising inner and outerradially spaced concentric members arranged one within the other andperforated, the upper end of the inner member being offset outwardly andadapted to contact with the inner face of the outer'member, a closuresupported by said offset portion of the inner member and perforated topermit the passage of liquid therethrough, and 'a straining elementmzounted in the lower end between saild members, said straining memberbeing in the form of a perforated pyramid having an outwardly extending,lateral ange to be clamped between the lower ends of the inherand outermembers t .7. A strainer of the class described comprising a hollowtruncated cone-shaped outer casing with .a cylindrical tubular:extension at its smaller lower end withi a shoulder at the front ofsaid extension, a hollow truncated cone-shapedl inner member arrangedwithin. the outer 'casing with its outer end offset to en agesaid-casing, said casing members havmg perforatlons arranged Out ofregister with \eacl 1 other, a top mounted' within the offset portion ofsaid inner casing and perforated fr the passage of liquid therethrough,perfor ted straining c disks arranged between the s oulder of the outercasing and the lower end of the inner casing, and a pyramidal,perforated strainer having a liange clamped between sald disks and thelower end of said inner casing.

8. A strainer of the class described comprising inner and outer radiallyspaced truncated cone-shaped casings arranged one within the other,` theouter end of the inner casing being oifset outwardly and contacting withthe inner face of the outer caslng, a pyramidal strainer mounted in thebottom of said casings, and a closure mounted 1n the top thereof andhaving an annular perforated depression 'adjacent its perimeter.

'In testimony whereof I aiix my signature in presence of two witnesses.

NIELS PETER PETERSEN. Witnessesx EDGAR G. COLLINS, ,Tnoa N. Ross.

